Rough surface geomembrane: a high-performance anti-seepage solution that improves project stability

In modern civil engineering, environmental protection and water conservancy projects, the selection of anti-seepage materials is of vital importance. As a leading trading enterprise in the field of geotechnical materials, we are committed to providing customers with high-performance and reliable products. Textured Geomembrane is precisely one of the core products. With its unique surface design and outstanding engineering performance, it is widely used in landfill sites, tailings ponds in mines, water conservancy projects and other fields. 

What is rough surface geomembrane?

Rough surface geomembrane is a kind of anti-seepage material made of high-density polyethylene (HDPE) or linear low-density polyethylene (LLDPE), and its surface is treated with a special process to form a rough texture. This texture design significantly enhances the friction coefficient between the membrane material and the soil or other materials, thereby improving the stability and anti-slip capacity of the overall project. Compared with smooth geomembranes, rough geomembranes perform better in steep slopes and high-stress environments and are an indispensable component of anti-seepage systems.

Product features and advantages

High coefficient of friction: The rough surface design increases the coefficient of friction between the membrane material and soil, sand, gravel or geotextile by 30% to 50%, effectively reducing the risk of slippage. It is suitable for steep slope and vertical anti-seepage projects.

Outstanding anti-seepage performance: Made from virgin HDPE or LLDPE raw materials, with a permeability coefficient of less than 10⁻¹² m/s, it ensures long-term anti-seepage effect and prevents the leakage of pollutants or liquids.

Chemical resistance and UV resistance: Resistant to acids, alkalis, salts and the erosion of most chemical substances. Uv anti-aging additives extend the outdoor service life to over 50 years.

Strong and tough mechanical properties: High tensile strength and elongation at break (typically tensile strength ≥20 MPa, elongation at break ≥700%), suitable for foundation settlement and deformation.

Easy installation: The rough surface structure is convenient for combination with geotextiles, drainage nets and other materials, improving construction efficiency.

How to choose rough surface geomembrane?

When choosing rough surface geomembrane, the following factors need to be considered:

Material: HDPE rough film is suitable for high-stress and highly corrosive environments. LLDPE rough mask has better flexibility and is suitable for areas with greater deformation.

Thickness: Common thickness ranges from 0.5mm to 3.0mm. The selection should be based on the engineering pressure and environmental requirements (for example, for landfill sites, it is recommended to be ≥1.5mm).

Surface texture type: Single rough surface (rough on one side) or double rough surface (rough on both sides). The double rough surface is suitable for composite structures that require friction on both sides.

Certification standards: Ensure that the products comply with international standards (such as GRI GM13, ASTM D7466), and provide third-party test reports.

The rough surface geomembranes provided by our company have all passed the ISO 9001 quality management system certification, and the size and performance indicators can be customized to meet the needs of different projects.

Rough surface geomembrane is a key technical material in modern anti-seepage projects. Its outstanding performance and wide applicability make it the first choice for various projects. If you are planning landfill sites, mine seepage prevention or water conservancy projects, please feel free to contact our team to obtain product samples and technical materials. We will provide you with customized solutions to support engineering safety and sustainable development.